Answer:
Step-by-step explanation:
"A mathematical model is a description of a system using mathematical concepts and language. The process of developing a mathematical model is termed mathematical modeling. Mathematical models are used in the natural sciences (such as physics, biology, earth science, chemistry) and engineering disciplines (such as computer science, electrical engineering), as well as in the social sciences (such as economics, psychology, sociology, political science).
A model may help to explain a system and to study the effects of different components, and to make predictions about behavior."
A / B
= 80 / 8
= 10
Therefore the answer is 10
Step-by-step explanation:
18+ 5(2x + 5) = 12
18 + 10x + 25 = 12
43 + 10x = 12
10x = 12 -43
10x = -31
x = -3.1
Well since I don't exactly know if 51 is a lot or a little since I don't know how much 25% of seventh grade students is, but 51 seems like a TON!! so I would believe that that it is very likely for most of the student would choose summer as their favorite, or maybe about 50% :/...